Brush.



JQ F. BOWDITGH.

BRUSH. 'APPLICATION FILED JANJB. 1907.

f Patented. Mar. 8

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wjhtto Specification ot Illiettere Patent. lt" /llttit.. l"

curing the bristles or other brush materiel in the holders, lsind in general to furnish o brush such that the brush material nitty be more l'endil7 applied und removed troni the head or `beck than heretofore, and Without requiring holes or grooves to be insole in the head or otherwise injuring the seine.

.t more specific object is to provide o brush element capable of independent use, or of use with other siniilnr elements on .it sin. glo head, in which the brush materiel is orranged in n continuous line instead of in detoched tufts;

0f' the accompanying druWings,-l3`igure 1 represents in elevation, o portion of :t brush constructed scoor-ding to my invention. Fig represents s fragmentary Isectional View of the brush head with one of the clips for holdings brush element. Fig. 3 represents :i detoil end 'View of o 4brush-holding clip. Figs. 4 and 5 represent s brush element, end illustrate the nninner in which the seine is constructed. Figs. ti and 7 represent o sonicwhat differently constructedlgforni ot brush element. Fi 8 represents 'en end- View of the holder tor the lnstointhed variety oi brush element before the brush meterialhss been placed therein. V

The same reference characters indicate the some ps1-ts in all the tigures.

Thebrush consists oit elements, 'each ot Whichis s separate and distinct unit capable of being used lone or with others placed side by side upon s head or bsckin The brush elements are each. mode of ristles which are inserted in holders, and secured therein. In Fig. 5, l show one form of brush element which I term the converging brush to distinguish it :trom another character of brush lcelled the flaring brush, to be hereinafter described. 'lhe holder a of the brush element is made from o stri of sheet metal which is bent u into trou h-like form with o bottom, on side mem ers b and c which, when the brush is completed, extend. substantially per endicu lar with the bottom. At s distance rom the bottom, the outer portions ot the side mein- Application filed Jennery iti', 3290*?. Eletto); It'o. tttiti hors nre bent tonni-d este ottsets between wl 'tt e. slet til et less 1width thon. tt oit the holder, through which 'the brush nieteriul e entends.

rlfhe tnonner in which the brush elements r, to torni 4'are constructed is se follows: When the holders o. nre tiret inode., the?,r oro given s. shspe substantially' lilte that shown in tig. 'l 'wherein the edges oit' the side lnenibers ore seperated by n distance suhstnntinlly greet es the 1Width otthe bottoni member et" the holder. lnto the letter is placed e. quentity ott-luid ndhesive, such os plus or cement,

ont churocter thntwill quiet ya' herd rind become peritectly solid. ,the bristles sie er ranged regulorlr end evenly between` two grippers, end their yer nre then pnseed through the open i nngghk into the adhesive eontinined t Cords y" und g nre placed loneitndnr y ot the holder within the ongle ned by the in'trsrdlywbent or oitset edges ot' the side members, sind thus lie on oppositie sides oit the hiess ot brush motorini. lthe sid oil the holder ere then compressed together, causing' the cords ind edges ot the side members to approach erich other and to grip between them o hiess ont' bristles. This notion also diminishes the interio'r volume ot 4the holder end neuestes the cement up into the bristles, comple' .ly lilling the intersticee ci the letta" end oit the cords.A When the cement widens, "ts tenseity, together with the ,t lctionnl E p pro Aduced by the cords, provides tosteninp; tor the bristles, oft o power which is unsnrpussed or unequoled by tiny other :testenin@l ineens known to me. litter the side members oit the holder here been forced into suhstuntiel psrnllelism,'the bent-over tianges thereof ure pressed down end further crowd the cords against thehutt ends oit the bristles. lhe

securing power oi" o holder so constructed greater-thon the tensile strength of the bris tles so that in .insny instances, n pull strong enough to breuk the hristles` they be @given without dislod their hott. ende trein he' tween the cords or polling them ont oli the cement. This it'orin out fastening the bristles causes them to entend with Very' little direi'- egence :troni the holder, end on this account, ll call the brush so termed the t convergent brush.

lin Fig. i' is shown the other torno. ol brush called the llerinp,r brush, wherein the bristles extend :trein the holder with tnuch greater divergence thun in the hind preti los ousiv described.. They are caused to diverge in t is manner by the construction of the holder, which differs trom the tiret-described holder in that the side members b and c of the. holder a do not terminate in flanges' turned toward eachother but, otter being bent inward, are reversely curved `and again ent outward, `forming daring walls and li. ln other words, the sides may be described as bein -intermediately odset so as to torni beads y c which extend toward each other and leave between them a slot di through which the bristles pass. In first forming the holder, the sides fare separated as shown in -Fig. 8 sniiicientlyto permit easy insertion of the ends ofV the bristles, and then upon being pressed together, the curved beads bearing -against; the bristlescause their protrudin l. being simply held by t e cement. and the" portions to be spread widely apart. Bruel 'elements of this flaring 'variety may be Insidel withoiit using the cords and' `g',`tlieir ends n' grip ot the beads, but the corde also may be nsedv as well, the saine being shown in Fig. 6.

l this pur ose will have these characteristics Y Other members or thingsjhan cords may be used for packing the brush material within the holder, but whatever may be used for of a cor ot being long and slender. Any

thing which is thus used serves as a fpaclring and may be conveniently so termed.

lin order to secure the brush elements upon,

a head or back Z, the latter is furnishedr with clips m formed similarly to the holders so that the latter will tit closely therein. rlhese clips have inwardly turned flanges n which extend over the outer corners of the brush holders, and are separated by a slot ,fo of sufficient width to admitthe brush material.

'ln holders formed for the reception of the daring brush elements; the width of the slot p is suilicient to receive not only the brush material, but also the side members of the holder at-the inwardly deiected portions y and 7a ot the latter. These clips are open 'at their ends and are secured to the brush head by iastenings g which pass through the bot toms ot the clips and are Counter-sunk to the 'level ofthe internal surface thereof. Preterably' such tastenings have the form ot y double pointed tacks or small staples, one

.a or the points oit the staple being driven into the brtish-head"'ontside of the clip. The. I

lterial. y

brush sections can be readily slipped endwise through the clips and tit therein with such closeness as to be held Jfrictionally with sniiicient tirrnness to prevent accidental dislodginent.

readily removed and a fresh one substituted. Bymy present invention l have provided l fis" soon as the brush material becomes worn ont, the section can be very seinen 1. A brush element consisting of a holder formed from a sheet metal stri bont so as to provide a bottom and side members, the latter being offset toward each other at a distance from the bottom, leaving a-rclatively narrow slot between their oiiset portions; brush material extending through said slot into the interior of the holder; and a `fibrous cord confined between the side member, the offset portion thereof, and the brush muteriahon each side ot the brush material clamping and frictionally holding the latter. l

2.' A brush element consisting oi av holder formed from a sheet-metal strip bentso as `to provide a bottom and side members, the

latterl being odset toward each other at o distance from the bottom, leaving a relatively narrow slot between their olisct portions bristlesextending perpendicular to the length of the holder with their ends passing through said slot; and cords compressed be tween the sides of the holder and the bristles, the cords and bristle ends being filled with a hardening cement.

3. A brush comprising a backing, clips secured to said backing, and brush elements contained in said clips, said elements each consisting of a trough-like holder, brush material extending through the longitudinal sideopenings of said holder, and packin pieces interposed between the brush materia and the adjacent sides ot the holder.

Ll. A brush element consisting of a holder having a longitudinalopening in one side of less width than the body of the hblder, brush material extending through such opening, andlpaelring pieces contained between' the 4sides ot the holder and the brush mii.-

n testimony whereof I have 'affixed my signature, in presence o-two witnesses.

' I .IQHN F. BOWDITCH. VWitnesses BATCHELDER, ARTHUR H. BROWN. 

